Stud-and-socket fastener.



F. S. CARR.

3TUD AND SOCKBT'FASTBNER. APPLICATION FILED MAR.20,1912.

Patented Dec. 31, 1912.

UNITED STATES rg ENT OFFICE.

FRED SUMNER CARE, OF BROOKLINE, MASSAQHUSETTS, ASSIGNOR TO CARR FASTENER (30., 0F BOSTON, MASSACHUSETTS, A CORPORATION OF MAINE.

STUD-AND-SOCKET FASTENER.

Specification of Letters Patent.

Patented Dec. 31, 1912.

Application filed March 20, 1912. Serial No. 684,958.

To all whom it may concern:

Be it known that I, Faun SUMNER CARR, a citizen of the United States, and a resident of Brookline, in the county of Norfolk and State of Massachusetts, have invented certain new and useful Improvements in Studand-Socket Fasteners, of which the following is a specification.

This invention relates to a stud and socket fastener, the socket member of which is composed of a casing adapted to be attached to one of the carrying parts to be connected by the fastener and provided with a stud-receiving orifice and with resilient jaws adapted to engage a stud inserted in said orifice, and a stud member adapted to enter ,the socket orifice and provided with a shoulder to be engaged by the locking jaws.

The invention relates particularly to that type of stud and socket fasteners in which the socket jaws resist a rectilinear movement of the stud member in a direction parallel with its axis, and in which the stud member and the jaws are so formed that the members are easily separated by a tipping movement of the stud member or of the socket member in a predetermined direction or directions, separation of the members by atipping movement of the stud or socket in otherdirections being resisted either more strongly or, positively. For the sake of concis'e'ness I will hereinafter specify a tipping movement of the stud member as the move ment which effects the separation of the members, but desire it understood that separation may be efiected by tipping either of said members relatively to the other.

The invention has for its object, first, to provide an improved construction whereby the tipping movement of the stud member which causes the separation of the members is so limited that easy separation by a tipping movement in practically one direction only is permitted.

The "invention also has for its object to rovide an improved construction of the casmg portion of the socket member whereby the outer avall of said casing is firmly supported against pressure tending to force said well inwardly, especially at the margin of the stud-receivingorifice therein.

The invention consists in the improvements which I will now proceed to describe and claim.

Of the accompanying drawings: Figure 1 represents a side elevation of a fastener embodying my invention, the members being operatively connected. Fig. 2 represents a section on line 2-2 of Fig. 1. Fig. 3 represents a section on line 33 of Fig. 2. Fig. 4 representsia section on line 4--4 of Fig. 1. Fig. 5 represents a top view of the socket member shown by the preceding figures. Figs. 6 and 7 represent views similar to Fig. 5 showing modifications.

The same reference characters indicate the same parts in all the figures.

In the drawings-12 and 13 represent two parts separably connected by a stud and socket fastener.

14 represents the stud member which is preferably of cylindrical form and is provided with an annular inwardly. facing shoulder 15 which is preferably flat and in a plane at right angles with the axis of the stud member.

within the marginal wall 17 and spaced from the outer wall 16. The inner and outer casing walls are provided with orifices 21 adapted to receive the stud member 14. The socket member also includes resilient means for engaging the shouldered stud member, said means being preferably straight resilient wire jaws 22 formed integral with a connectin loop 22, all located in the space between t e inner and outer casing Walls. The jaws 22 extend across the orifices 21 and are adapted to spring inwardly into engagement with the stud shoulder 15. The aws are arranged tangentially to the periphery of the stud, as shown by Fig. 4.. The form and arrangement of the jaws and of the stud shoulder are such that when the stud is tipped in a plane parallel with the jaws, as indicated by Fig. 3, its shoulder 15 acts to force or displace the jaws outwardly in opposite directions and thus disengage them from the stud member. In other words, the aws and stud shoulder are adapted to cooperate to permit the tipping of the stud member in the directions indicated by the arrows, a,-b, although in practice a tipping movement in the direction of the arrow 12 is prevented by the stops hereinafter described, in accordance with my invention.

The jaws and the stud shoulder cooperate to prevent a tipping movement of the stud in a plane at right angles with the jaws, or in the directions indicated by the arrows c, d, Fig. 2. I

The outer wall of the socket member and the stud member are provided with complemental stops which are located at one side of the stud-receiving orifice 21 and abut against each other when the members are connected, the functio'n of said stops being to prevent the tipping of the-stud member in the direction of the arrow 5. Said stops are preferably formed by a protuberance on the outer casing wall 16, and a base flange 24 on the stud member. Said protuberance may be an elongated segmental boss 23, as shown by Fig. 5, or a narrow boss 23*, as shown by Fig. 6, or a series'qf independent bosses 23 as shown by Fig. 7. When the members are being engaged, the stops 23 and 24 abut against each other, as shown by Fig. 1, at the same time that the jaws 22 spring into en agement with the shoulder 15. The

engage members cannot, therefore, be sepa rated by a tipping movement of the stud in the direction of the arrow 17, but are easily separable by a tipping movement of the stud in the direction of the arrow a, as indicated by Fig. 3. It will now be seen that means are provided for preventing or strongly resisting a tipping. movement of the stud member in practically all directions but one.

When the stud shoulder is formed, as shown. in a "plane at right angleswith the axis of the stud, the members are inseparable either by a rectilinear longitudinal movement of the stud member orby any tipping movement excepting one, in a plane parallel with the jaws. If the shoulder 15 were beveled or. frusto conical, the members might be separable either by a rectilinear longitudinal movement of the stud member or by tipping movements in the directions of the arrows a, d, but a much greater re sistance would be ofiered to either of these separating movements than to a tipping movement-in a plane parallel with the jaws, or in the direction of the arrow at. I do not limit myself therefore to the form of stud shoulder shown by the drawings and may give said shoulder any suitable form which will permit a relatively easy separation of the members by a tipping, movement of the stud member in the direction of the arrow as (or, in the direction of the arrow 5 if the 'stop membersQfi-S, 2% were not present) and will either more strongly resist or absolutely prevent separation by movements of the stud member in any other direction. The stop members it? and2 l by supporting any pressure tending to tip the stud member in the direction of the arrow 6, render unnecessary any special formation of the jaws 22 to oppose such pressure, so that jaws composed of straight lengths of wire are suitable, these jaws, supported by the outer and inner casing walls, being adequate to prevent tipping movements of the stud in the direction of the arrows a, d, and, while they permit an easy tipping movement of the stud in the direction of the arrow a, a tipping movement in the direction of the arrow'b which would otherwise be permitted by the jaws, is prevented by the stop members.

25 represents a strut formed on the outer casing wall 16 at the side of the stud-receiving orifice therein opposite the stop protuberance 23, said strut bearing on the inner wall 20, and resisting pressure on the outer wall tending to force it inwardly. The protuberance at one side of the orifice in the outer wall of the casingstifiens said wall andprevents it from yielding to inward pressure of the base flange 24 thereon. The strut 25 located at the opposite side of said orifice and bearing on the inner wall of the casing resists pressure of the base flange on the casing when the stud member is tipped to separate the base flange from the protu berance.

I claim 1. A stud and socket fastener comprising a socket member composed of a casing and resilient stud-engaging jaws contained therein, the outer wall of the casing being pro-v vided with Tastud-receiving orifice, a shouldered stud'member adapted to enter said orifice and engage the said jaws, the stud shoulder and the jaws being engageable to resist separation by a rectilinear movement of the stud member, and separable by a tipping movement of the stud member in a direction longitudinal of the jaws, and-complemental stops on the socket and stud members located at one side of'the orifice of'the socket casing whereby the tipping of the stud member in one direction longitudinal of the jaws is permitted, and the tipping of the stud member in the opposite direction is prevented.

2. A stud and socket fastener comprising a socket member composed of a casing and substantiallv parallel resilient jaws therein,-

. opposite side of said orifice with means for ping movements of the stud member in a plane parallel with the jaws, and complemental stops on the socket and stud members located at one side of the orifice of the socket member, whereb a jaw-displacing tipping movement of the stud member in one direction is permitted, and a jaw-displacing-tipping movement of the stud member in the opposite direction is prevented.

3. A stud and socket fastener comprising a socket member com posed of a casing having spaced inner and outer walls and resilient stud-engaging means between said walls, and a shouldered stud member adapted to enter the orifice in the outer wall and engage the resilient means therein, the socket member being provided at one side of said orifice with means for preventing a tipping movement of the stud member in one direction relatively to the socket member, and at the resisting pressure of the stud member against the said outer wall when the stud member is tipped in the opposite direction.

l. A stud and socket fastener comprising a socket member composed of a casing having spaced inner and outer walls, provided with stud-receiving orifices, and resilient studengag1ng means between said walls, the

outer wall being provided with a protuberauce located at one side of the orifice therein and adapted to resist inward pressure and prevent a tipping movement of a stud member, and with a strut located at the opposite side of said orifice and bearing on the inner wall to resist inward pressure on said outer wall, and a shouldered stud member adapted to enter said orifice and engage the resilient means therein, the stud member being provided with a base flange adapted to abut against said protuberance when the members are operatively connected, and against the part of the casing supported by said strut when the stud member is tipped in the direction required to separate its base flange from the said protuberance.

In testimony whereof I have afiixed my signature, in presence of two witnesses.

- FRED SUMNER CARR. Witnesses:

F. R. RoULsTonE, J. M. MURPHY. 

